Q: What is the sum of all factors of the number 21,376 including 21,376?
A: 42,840
The factors of the number 21,376 are: 1, 2, 4, 8, 16, 32, 64, 128, 167, 334, 668, 1336, 2672, 5344, 10688, 21376.
If you add them up, you will get the total of 42,840.